1454135481 has 12 divisors (see below), whose sum is σ = 2121215460. Its totient is φ = 959824800.

The previous prime is 1454135461. The next prime is 1454135497. The reversal of 1454135481 is 1845314541.

1454135481 is a `hidden beast` number, since 1 + 4 + 541 + 35 + 4 + 81 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 1025024256 + 429111225 = 32016^2 + 20715^2 .

It is not a de Polignac number, because 1454135481 - 2²³ = 1445746873 is a prime.

It is a super-2 number, since 2×1454135481² = 4229019994206202722, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1454135461) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 798946 + ... + 800763.

It is an arithmetic number, because the mean of its divisors is an integer number (176767955).

Almost surely, 2^1454135481 is an apocalyptic number.

It is an amenable number.

1454135481 is a deficient number, since it is larger than the sum of its proper divisors (667079979).

1454135481 is a wasteful number, since it uses less digits than its factorization.

1454135481 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1599816 (or 1599813 counting only the distinct ones).

The product of its digits is 38400, while the sum is 36.

The square root of 1454135481 is about 38133.1283925146. The cubic root of 1454135481 is about 1132.9262088903.

The spelling of 1454135481 in words is "one billion, four hundred fifty-four million, one hundred thirty-five thousand, four hundred eighty-one".